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BOSTON MARATHON 2023

Jack Moss

Bib: 3988•M

KS

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Division (M18-39)
#0 / 5285
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:44
Rank: #3420
Start → 5K
20:44 | 6:40/mi
10K· 6.21 mi
41:23
Rank: #3620 (-200)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:02:04
Rank: #3628 (-8)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:23:04
Rank: #3715 (-87)
15K → 20K
21:00 | 6:46/mi
Half· 13.11 mi
1:27:40
Rank: #3762 (-47)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:00
Rank: #3723 (+39)
Half → 25K
16:20 | 6:44/mi
30K· 18.64 mi
2:05:13
Rank: #3597 (+126)
25K → 30K
21:13 | 6:50/mi
20M
2:14:43
Rank: #3584 (+13)
30K → 20M
9:30 | 6:59/mi
21M
2:22:09
Rank: #3608 (-24)
20M → 21M
7:26 | 7:26/mi
35K· 21.75 mi
2:27:23
Rank: #3675 (-67)
21M → 35K
5:14 | 7:00/mi
23M
2:36:26
Rank: #3768 (-93)
35K → 23M
9:03 | 7:14/mi
24M
2:43:31
Rank: #3844 (-76)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
2:49:46
Rank: #3953 (-109)
24M → 40K
6:15 | 7:19/mi
25.2M
2:52:28
Rank: #3980 (-27)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:59:31
Rank: #4046 (-66)
25.2M → Finish
7:03 | 6:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:40
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:31:51
Pace7:00 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1220:446:4020:44
6:40
-
10K
6.21 mi10:42:5141:236:4020:39
6:39
-0:01
15K
9.32 mi11:03:321:02:046:4020:41
6:39
0:00
20K
12.43 mi11:24:321:23:046:4121:00
6:46
+0:07
Half
13.11 mi11:29:081:27:406:414:36
6:45
-0:01
25K
15.53 mi11:45:281:44:006:4216:20
6:44
-0:01
30K
18.64 mi12:06:412:05:136:4321:13
6:50
+0:06
20M
20.00 mi12:16:112:14:436:449:30
6:59
+0:09
21M
21.00 mi12:23:372:22:096:467:26
7:26
+0:27
35K
21.75 mi12:28:512:27:236:475:14
7:00
-0:26
23M
23.00 mi12:37:542:36:266:489:03
7:14
+0:14
24M
24.00 mi12:44:592:43:316:497:05
7:05
-0:09
40K
24.85 mi12:51:142:49:466:506:15
7:19
+0:14
25.2M
25.20 mi12:53:562:52:286:512:42
7:50
+0:31
Finish
26.22 mi13:00:592:59:316:517:03
6:55
-0:55

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:39 /mi

Average Pace

6:51 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:08

91% of race

Time at Steady Pace

16:23

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:1220:446:4020:44
6:40
#3420
10K
6.21 mi10:42:5141:236:4020:39
6:39
#3620
15K
9.32 mi11:03:321:02:046:4020:41
6:39
#3628
20K
12.43 mi11:24:321:23:046:4121:00
6:46
#3715
Half
13.11 mi11:29:081:27:406:414:36
6:45
#3762
25K
15.53 mi11:45:281:44:006:4216:20
6:44
#3723
30K
18.64 mi12:06:412:05:136:4321:13
6:50
#3597
20M
20.00 mi12:16:112:14:436:449:30
6:59
#3584
21M
21.00 mi12:23:372:22:096:467:26
7:26
#3608
35K
21.75 mi12:28:512:27:236:475:14
7:00
#3675
23M
23.00 mi12:37:542:36:266:489:03
7:14
#3768
24M
24.00 mi12:44:592:43:316:497:05
7:05
#3844
40K
24.85 mi12:51:142:49:466:506:15
7:19
#3953
25.2M
25.20 mi12:53:562:52:286:512:42
7:50
#3980
Finish
26.22 mi13:00:592:59:316:517:03
6:55
#4046
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3420322332233750(Top 14%)3534(Top 23%)3534(Top 67%)
10K6.21 mi3.10 mi3620-2003415-1923415-1923863(Top 15%)3640(Top 24%)3640(Top 69%)
15K9.32 mi3.11 mi3628-83428-133428-133750(Top 14%)3534(Top 23%)3534(Top 67%)
20K12.43 mi3.11 mi3715-873514-863514-864071(Top 15%)3817(Top 25%)3817(Top 72%)
Half13.11 mi0.68 mi3762-473556-423556-424696(Top 18%)4358(Top 29%)4358(Top 82%)
25K15.53 mi2.42 mi3723+393520+363520+363654(Top 14%)3443(Top 23%)3443(Top 65%)
30K18.64 mi3.11 mi3597+1263403+1173403+1173193(Top 12%)3009(Top 20%)3009(Top 57%)
20M20.00 mi1.36 mi3584+133391+123391+123971(Top 15%)3687(Top 24%)3687(Top 70%)
21M21.00 mi1.00 mi3608-243412-213412-214267(Top 16%)3907(Top 26%)3907(Top 74%)
35K21.75 mi0.75 mi3675-673468-563468-565264(Top 20%)4692(Top 31%)4692(Top 89%)
23M23.00 mi1.25 mi3768-933549-813549-814921(Top 18%)4404(Top 29%)4404(Top 83%)
24M24.00 mi1.00 mi3844-763611-623611-625072(Top 19%)4472(Top 29%)4472(Top 85%)
40K24.85 mi0.85 mi3953-1093700-893700-895477(Top 21%)4664(Top 31%)4664(Top 88%)
25.2M25.20 mi0.35 mi3980-273726-263726-265455(Top 20%)4554(Top 30%)4554(Top 86%)
Finish26.22 mi1.02 mi4046-663786-603786-604724(Top 18%)4079(Top 27%)4079(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3750

Males

3534

M18-39

3534

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

3863

Males

3640

M18-39

3640

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3750

Males

3534

M18-39

3534

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4071

Males

3817

M18-39

3817

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4696

Males

4358

M18-39

4358

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3654

Males

3443

M18-39

3443

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3193

Males

3009

M18-39

3009

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3971

Males

3687

M18-39

3687

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4267

Males

3907

M18-39

3907

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5264

Males

4692

M18-39

4692

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4921

Males

4404

M18-39

4404

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5072

Males

4472

M18-39

4472

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5477

Males

4664

M18-39

4664

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5455

Males

4554

M18-39

4554

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4724

Males

4079

M18-39

4079

Passing Analysis

Category:
Athletes Passed
818
Passed By
1444
Net Change
-626
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3420
5K → 10K121321-200#3420#3620
10K → 15K98106-8#3620#3628
15K → 20K66153-87#3628#3715
20K → Half855-47#3715#3762
Half → 25K9859+39#3762#3723
25K → 30K16943+126#3723#3597
30K → 20M6350+13#3597#3584
20M → 21M4165-24#3584#3608
21M → 35K1683-67#3608#3675
35K → 23M38131-93#3675#3768
23M → 24M30106-76#3768#3844
24M → 40K23132-109#3844#3953
40K → 25.2M1946-27#3953#3980
25.2M → Finish2894-66#3980#4046
TOTALS8181444-626
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing